10142243 has 4 divisors (see below), whose sum is σ = 10169808. Its totient is φ = 10114680.

The previous prime is 10142233. The next prime is 10142267. The reversal of 10142243 is 34224101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34224101 = 251 ⋅136351.

It is a cyclic number.

It is not a de Polignac number, because 10142243 - 2⁴ = 10142227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10142203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13223 + ... + 13968.

It is an arithmetic number, because the mean of its divisors is an integer number (2542452).

Almost surely, 2^10142243 is an apocalyptic number.

10142243 is a deficient number, since it is larger than the sum of its proper divisors (27565).

10142243 is an equidigital number, since it uses as much as digits as its factorization.

10142243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27564.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 10142243 is about 3184.6888388036. The cubic root of 10142243 is about 216.4601743384.

Adding to 10142243 its reverse (34224101), we get a palindrome (44366344).

The spelling of 10142243 in words is "ten million, one hundred forty-two thousand, two hundred forty-three".